Ballast-unloader.



01B. KING & G. B. WESTON.

BALLAST UNLOADER.

APPLICATION rum) JUNE 12, 1911.

Patented Nov. 12,1912.

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G. B. KING & G. B. WESTON.

BALLAST UNLOADBR.

APPLICATION FILED JUNE 12, 1911.

Patented Nov. 12, 1912.

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CHARLES B. KING AND CLARENCE B. WESTON, OF MARION, OHIO, ASSIGNOR-S TOTHE MARION STEAM SI-IOVEL COMPANY, OF MARION, OHIO, A CORPORATION'OFOHIO.

BALLAST-UNLOADER.

To all whom it may concern:

Be it known that we, CHARLES B. KIN and CLARENCE B. lVEsToX, citizens ofthe United States, residing at Marion, in the county of Marion and Stateof Ohio, have invented certain new and useful Improvements inBallast-Unloaders, of which the following is a specification, referencebeing had therein to the accompanying drawing.

This invention relates to ballast unloaders and more particularly topropelling the pilots of such unloaders.

In a well known type of. unloader it has been customary to cause thenose of the plow to engage the rear portion of the pilot and push thepilot ahead of the plow. This const-ruction on the whole is verysatisfactory, but, under certain conditions, the pushing action isobjectionable.

The object of the present invention is to overcome these objectionswithout eliminating any of the desirable features of the earlier device.I

To this end it is a further object of the invention to provide suitableconnections between the pilot and the draft mechanism for the plow tocause the pilot to be pulled by said draft mechanism; and further, toprovide suitable means to center the pilot with relation to the nose ofthe plow.

In the accompanying drawings, Figure l is a top, plan view of theforward portion of the plow showing the pilot connected therewith; Fig.2 is a longitudinal, sectional view taken centrally through the pilotshowing the nose of the plow in elevation; and Fig. 3 is a transverse,sectional view, taken on the line 00 0a of Fig. 2 and looking in thedirection of the arrows.

In these drawings we have illustrated one embodiment of our inventionand have shown the same as applied to an unloader comprising a plow 1and a pilot indicated as a whole by the reference numeral 2. This pilotmay be of any suitable construction but is here shown as comprising aframe, preferably consisting of front and rear arches 3 and 4: connectedone to the other and having secured thereto fender plates or sidemembers 5 which constitute runners upon which the pilot travels, as wellas fender plates. The arches 3 and 4 may be braced one against the otherin any suitable manner, such, for example, as by arranging a curvedplate of metal, as shown at 6, be-

Specification of Letters Patent.

Application filed June 12, 1911.

Patented Nov. 12, 1912.

Serial No. 632,544.

tween the arches and rigidly connecting the same thereto. Suitable wraftmechanism is connected to the nose of the plow l and extends forward toa point in front of the pilot where it is adapted to be connected to thehauling cable for actuating the plow. As here shown this draft mechanismcomprises a draft bar 7 consisting of two parallel members adjustablyconnected to the nose of the plow by means of a pin 8 adapted to extendthrough any one of a series of apertures 9 formed in said nose. Theforward end of the draft bar 7 is adjustably supported from the pilot,and, in the present instance, this is accomplished by means of a rod 10pivotally connected to the draft bar near its forward end and extendingupward through an apertured lug 11 carried by the front arch of thepilot. A suitable stop is secured to the rod 10 above the lug 11 tolimit the downward movement of the forward end of the draft bar. In thepresent instance this stop comprises a pin 12 adapted to pass throughany one of a series of holes 13 in the rod 11.

A suitable connection is provided for connect-ing the pilot to the draftmechanism for the plow to cause the pilot to be pulled ahead of theplow. In the present construction this connection comprises two draftrods 14 connected to the pilot near the rear end thereof, convergingforwardly and connected. with the draft bar 7 near the forward end ofthe pilot. Preferably, the draft rods 14L are pivotally connected to therear arch 4 of the pilot at a point between the upper and lower limitsof adjustment of the rear end of the draft bar 7, thus permitting thedraft bar to be adjusted without materially affecting the pull on thepilot.

It is also desirable that the pilot and the plow should be maintained insuch relative positions that the nose of the plow will at all timesoccupy a position substantially midway between the upright portions ofthe rear arch. To so center the nose of the plow without interferingwith the necessary relative movements of the plow and the pilot we haveprovided the rear arch 4 of the pilot with depending lugs 15 arranged onopposite sides of the nose of the plow and serving to prevent lateralmovement of the pilot or the plow relatively one to the other, butallowing relative vertical movement of the same.

The operation of the device will be readily understood from theforegoing description and it will be apparent that the propelling meansfor the plow is so connected with the pilot as to exert a direct pullupon the latter and cause the same to be moved ahead of the plow,thereby entirely eliminating the pushing action of the plow against thepilot.

While we have herein shown one form of our invention it will beunderstood that this is chosen for the purpose of illustration only andthat we do not wish to be limited to the details of construction shownand described, for obvious modifications will occur to a person skilledin the art.

- means and said plow.

2. In an unloader, the combination, with a plow, and a pilot arranged infront of said plow, of a draft device having independent connectionswith said plow and said pilot.

3. In an unloader, the combination, with a plow, and a pilot arranged infront of said plow, of a draft device, and separate connections betweensaid draft device and the nose of said plow and the rear portion pilot,and connecting devices secured to the rear portion of said pilot andsecured to said draft bar near the forward end of said pilot.

6. In an unloader, the combination, with a plow, and a pilot arranged infront of said plow, of a draft bar adjustably connected with said plowand extending forward through said pilot, and connecting devices securedto the rear portion of said pilot between the upper and lower limits ofadjustment of said draft bar and also secured to said draft bar near theforward end of said pilot.

7. In an unloader, the combination, with a plow, and a pilot arranged infront of said plow, of a draft bar having its rear end adjustablyconnected to said plow and its forward end adjustably supported fromsaid pilot, and a draft rod connected with the rear portion of saidpilot on the opposite sides of the nose of said plow, convergingforwardly and connected with said draft bar.

8. In an unloader, the combination, with a plow, and a pilot arranged infrontof said plow, of a draft bar for imparting a forward movement tosaid plow, and draft rods connecting said pilot with said draft bar.

9. In an unloader, the combination, with a plow, and a pilot arranged infront of said plow, of means to impart forward movement to said plow,connecting device between said pilot and said means, and means to centersaid pilot with relation to said plow.

10. In an unloader, the combination, with a plow, and a pilot arrangedin front of said plow," of a draft bar connected with said plow, andextending forwardly therefrom, draft rods connecting said pilot withsaid draft bar, and means to center said pilot with relation to saidplow.

11. In an unloader, the combination, with a plow, and a pilot arrangedin front of said plow, of a draft bar connected with said plow andextending forwardly therefrom, draft rods connected with the rearportion of said pilot on opposite sides of said draft bar, convergingforwardly and connected with said draft bar, and lugs depending fromsaid pilot on opposite sides of a portion of said plow to center saidpilot with relation to said plow.

In testimony whereof, we affix our signatures in presence of twowitnesses.

CHARLES B. KING. CLARENCE B. WESTON. Witnesses:

HARRY L. Cox, C. N. WRIGHT.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents Washington, D. G.

